Select different pH meter probes according to the usage scenario,Choosing the right pH probe is necessary to achieve its accuracy and stability. One can be extendedPHThe service life of the acidity meter can reduce the cost for customers.
1.To inform the manufacturer of the media used for testing (including the composition, concentration, turbidity, and other conditions of the media)
2.Detect the temperature and pressure of the medium
3.PHProbe installation method
4.Probe signal line length (standard configuration)5m）
5.Temperature resistance value required for probe
Notes:
1.Whether the medium contains corrosive substances, what is the concentration, (probes are required for strong acids and bases), and note that if it contains hydrofluoric acid, it is necessary to use a corrosion-resistant probeHFThe pH probe.
2.Medium temperature and pressure, general condition selection0-80℃For internal probes, high-temperature resistant pH probes must be selected. Pressure and atmospheric pressure are generally0.6mpaFor high-pressure applications, a high-pressure resistant pH probe should be selected.
3.phProbe installation methods: submerged installation, side wall installation, pipeline installation, flange installation, floating installation, and flow-through installation.
4.phProbe sensor (PH electrode) awayPHThe distance between the display and instrument is 60riceWithin, the standard configuration is 5mIf it exceeds 60Mi needs to be equipped with signal amplifiers and other measures.
5.PHWhat is the pH electrode temperature compensation resistor equipped with the instrument,The temperature compensation resistor can be selected according to requirements, such as:PT1000ThePT100ThePT50The10KThe2KwaitThis way, choosing a pH probe can be purchased and used immediately. Prevent returns and exchanges from delaying production.